1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zhenek [66]
3 years ago
5

Y+z=4 y-z=8 how to solve this problem​

Mathematics
1 answer:
spin [16.1K]3 years ago
5 0

Use elimination

y + z = 4

y - z = 8

Subtract both

2z = -4, z = -2

Y - 2 = 4, y = 6

Solution: y = 6, z = -2

You might be interested in
Find the mode for the following numbers 8,9,11,8
hram777 [196]

Answer:

The mode is 8

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Answer Part A and Part B for the triangle shown
Tom [10]

Answer:

for Part A

Answer is C.

Step-by-step explanation:

\tan(a)  =  \frac{opposite}{adjacent }  \\

Here the angle, a is 60°, Opposite is 20 and adjacent is x.

Therefore we have,

\tan(60 )  =  \frac{20}{x}

Making x the subject gives us

x =  \frac{20}{ \tan(60) }

Part B

Value of x to the nearest tenth

x = 11.547 \\ to \: the \: nearest \: tenth \\ x = 12

5 0
3 years ago
A woman plans to buy some bottles of alcohol, a bottle of Heineken goes for $800 while that of monster drink $250. she doesn't h
Alja [10]

Answer:

The inequalities that must be satisfied is

x + y  \leq  32

x(800) + y(250)  \leq 3500

Step-by-step explanation:

Let the number of  Heineken bottles be x

Let the number of  monster drink bottles be y

Her crate cannot hold more than 32, This situation can be represented as

\text{Number of  Heineken bottles  +   number of  monster drink bottles } \leq 32

That is

x + y  \leq  32 ------------------------(1)

Cost of one Heineken bottles = $800

Cost of one  monster drink bottles = $250

then

x \times \text{cost of one Heineken bottle }  + y \times \text{ cost of one monster drink bottle} \leq 3500x

x(800) + y(250)  \leq 3500------------------(2)

5 0
4 years ago
While shopping for a gift, you find the perfect wallet on sale for 89% off its original $5.62 price. How
Nat2105 [25]

Answer:5.0018

Step-by-step explanation:

7 0
3 years ago
Kahi can eat 32 pieces of candy in 1 hr her sisters can eat the same amount in 3 hrs how long will it take both them togethr to
pantera1 [17]
So, in order to find the answer, this is what we are going to do.
Let K be the number of candies that Kahi can eat per hour and S be the number of candies that her sisters can eat per hour.
So for the sisters, let us divide 32 by 3 and we get, 10.67. so 10.67/ hour.
Now, consider this expression: <span>(K+S)*h = 32
Plug in the given values.
(32 +10.67)h = 32
42.67h = 32
Divide both sides by 42.67 and we get
h= 1.33. Therefore, it will take 1.33 hour for both of them together to eat 32 candies. Hope this answer helps.</span>
5 0
4 years ago
Other questions:
  • Which is closet to the surface area of the container please help me
    7·1 answer
  • Let f(x) = x2 − 81. Find f−1(x)
    9·1 answer
  • Help pls :( I am failing this class
    10·1 answer
  • The four partners in a business decide to split the profits of their company in the ratio 2 : 3 : 3 : 5 .
    9·1 answer
  • The average price for gasoline per gallon is $3.562 if last year the average price for gasoline per gallon was $2.810 what is th
    8·1 answer
  • Pls help?!?!?!?!?!??!!
    6·1 answer
  • What’s the value of x?????
    14·1 answer
  • I don't know I need help.
    15·1 answer
  • First answer = brainliest
    12·2 answers
  • Use the function y = 50 tan x on the interval 0 &lt; x &lt; 150 Complete the ordered pair (x, 125). Round your answer to the nea
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!